US PATENT SUBCLASS 570 / 192
.~.~.~.~ Halo, 1,1-diphenylethane or ring substituted derivative thereof prepared (e.g., DDT, etc.)

Current as of: June, 1999
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570 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
190  DF  .~.~ Processes of preparing, purifying, or recovering benzene ring containing compound {9}
191  DF  .~.~.~ Preparing acyclic haloalkyl group containing compound {4}
192.~.~.~.~ Halo, 1,1-diphenylethane or ring substituted derivative thereof prepared (e.g., DDT, etc.)

DEFINITION

Classification: 570/192

Halo, 1,1-diphenylethane or ring substituted Derivative thereof prepared DDT, etc.):

(under subclass 191) Process wherein the compound prepared has the 1,1-diphenylethane structure, (i.e., see figure below) wherein at least one hydrogen atom is replaced with halogen and in addition may have other substituents on the ring carbon atoms. [figure]